1940380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 4656960

約数和(自身を除く): 2716580

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 439, 442, 878, 884, 1105, 1756, 2195, 2210, 4390, 4420, 5707, 7463, 8780, 11414, 14926, 22828, 28535, 29852, 37315, 57070, 74630, 97019, 114140, 149260, 194038, 388076, 485095, 970190, 1940380]

約数ペア:

[(1, 1940380), (2, 970190), (4, 485095), (5, 388076), (10, 194038), (13, 149260), (17, 114140), (20, 97019), (26, 74630), (34, 57070), (52, 37315), (65, 29852), (68, 28535), (85, 22828), (130, 14926), (170, 11414), (221, 8780), (260, 7463), (340, 5707), (439, 4420), (442, 4390), (878, 2210), (884, 2195), (1105, 1756)]